Answer:
Hey mate, here's ur answer:
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(4a - 3b + 4c) + (8a - 2b + 3c)
=4a+−3b+4c+8a+−2b+3c
=(4a+8a)+(−3b+−2b)+(4c+3c)
=12a−5b+7c
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Hope it helps
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